National Repository of Grey Literature 32 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Synthesis and characterisation of advanced molecules with implemented adamantane skeleton
Jančík, Ján ; Maier,, Lukáš (referee) ; Krajčovič, Jozef (advisor)
This diploma thesis describes synthetic approach and characterization of advanced molecules with implemented adamantane skeleton and perspective use in attractive field of organic electronics. Three of four prepared molecules based on para-bis(2-thienyl)phenylene are original and totally new, and there were performed different synthetic approaches with comparison of yield, ecological and financial impact. Study of microwave synthetic approach was provided for cross-coupling reactions on para-bis(2-thienyl)phenylene skeleton. For all molecules were used ethyladamantyl and methyladamantyl substituents. Also, two completely new molecules based on 2,2':5',2''-terthiophene with ethyladamantyl and methyladamantyl substituents were prepared. In the next part were prepared new dimer structures of adamantane with possible application on field of polymers as bridge molecules. In the thesis were also made series of experiments for preparation of tetrasubstituted adamantane molecules, and for optimisation of preparation of spiroadamantane systems.
Development of display technology
Mudrich, Tomáš ; Reich, Pavel (referee) ; Walek, Agata (advisor)
Cílem této semestrální práce je poskytnoust stručný popis vývoje zobrazovacích zařízení od prvních displejů až po nejmodernější technologie a technologie, které budou používány v blízké budoucnosti Tato práce popisuje vlastnosti jednotlivých typů displejů, princip fungování použitých technologií a specifikuje výhody a nevýhody jejich použití.
Audio preamplifier with input selector
Starčok, Tomáš ; Adámek, Martin (referee) ; Šandera, Josef (advisor)
This thesis deal with the audio preamplifier with input selector. It describes all designed parts of this device. It selects and describes all suitable components. Describes the whole process of electronics design in this device. Then describes the design, manufacture, assembling and testing of the PCB. In conclusion it shows the achieved results and electrical parameters of the device.
IMPLEMETATION OF POLYCYCLIC SATURATED SYSTEMS IN ADVANCED SMART MOLECULES USABLE IN ORGANIC ELECTRONICS
Jančík, Ján ; Richtár, Jan (referee) ; Krajčovič, Jozef (advisor)
This essay deals with implementation of polycyclic saturated systems as bulky and very stable molecules, in advanced systems usable in organic electronics. It deals with theoretical aspects of structure and properties of polycyclic saturated systems, which based on available examples and literature are very perspective. Based on theoretical aspect in the first part of essay, the second part deals with synthesis of new molecule with incorporation of polycyclic saturated system usable in organic electronics. This part deals with all main intermediates synthetized via cross-coupling reactions.
Embedded System with Communication Interface NFC and Wi-Fi
Bugár, Loránt ; Valach, Soběslav (referee) ; Horák, Karel (advisor)
This master’s thesis deals with communication system design via the NFC and Wi-Fi interface. The thesis has two basic goals. The first goal is to create a device that is capable of storing of data and its subsequent transfer via the NFC interface. The second aim is to utilize this device for measuring various physical variables. The IoT technology is employed to fulfill the aforementioned goal. IoT technology is capable of visualizing data in real time and make them accessible via the Internet. The result of this work is an universal device, that contains the most popular communication interfaces, such as I2C, SPI and that is capable of processing measurement data from digital, analogue, and wireless sensors.
Customizable rear combination lamp module with HD resolution
Prokš, Jiří ; Pristach, Marián (referee) ; Kledrowetz, Vilém (advisor)
This thesis deals with the design of LED matrix array contains 150 LEDs. In the first part, the thesis identifies source of light like OLED and LED and provide an overview of their lifetime, reliability and basic principle of design systems with LEDs. The thesis then describe design of LED matrix array, deals with power supply of this LED array and with cooling of LED. Finally the thesis describes a software for contol of LED matrix array.
Organic semoconductors materials
Černošek, Michal ; Starý, Jiří (referee) ; Špinka, Jiří (advisor)
This bachelor thesis deals with organic materials and parts made of this materials. Described are also principels of their functions, structure of whore part and issues linked with production. Next are refered advanteges and disadvantages of those parts. Described are also events which occures during using organic parts. Attention is given to light emitting diods. In experimental part is measured electrical attriburtes of PLED structures, exposed to different sources of illumination. Influence of illumination to transfer of electrical charge is examined too
Design and realization of the power meter with IoT connectivity
Zagrapan, Ivan ; Lattenberg, Ivo (referee) ; Krajsa, Ondřej (advisor)
This thesis deals with designing and creating working prototype of IoT Wattmeter with option to switching relay. This device can be control remotely with option to read measured values. To reach my goals, I am using open-source designing board, different sensors and modules. I tis possible to communicate with device through Wi-Fi module ESP 8266 and to test LPWAN network I am using SIGFOX, module. To measure current, it´s used simple Hall-effect sensor and all available information’s are displayed on OLED display. To switch the circuit off or on solid state relay was used. In theoretical part of the work, I am trying to explain working principles of every module and source code, which I am using to control these modules. In practical part I created scheme, using CADSoft EAGLE and created functional wattmeter. Whole work is programmed in C++ language using Arduino IDE.
Design of digital camera
Miklica, Martin ; Chorý, Tomáš (referee) ; Zvonek, Miroslav (advisor)
This work deals with the history, present and future of photography. The main objective however is to design a stylish compact digital camera with regard to the requirements of modern life, such as the expansion of internet social networks and the associated use of the camera as a visual scrapbook. Emphasis was placed on a new shape solution, simple operation and good ergonomics of holding.
Organic semiconductors and their applications
Galbička, Tomáš ; Sedláček, Jiří (referee) ; Hubálek, Jaromír (advisor)
Bachelor’s thesis is deals with a problem of organic semiconductors, where are describe fundamental principles of charge transport and explanation of basic organic structures. There is described basic operation and layering of simple organic parts especially organic diode. There are practical tests of electrical properties of two different polymer diodes PLEDs. Where in this experimental part are present characteristics of these parts and them comparison at variant ilumination and mutually measuring.

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